Reinforced telescopic container



8, 1969 A. P. DU BARRY, JR 3,428,234

REINFORCED TELESCOPIC CONTAINER Filed Jan. 19, 1967 //V VE/V TOR ADE/4M R DoEAPRY JR.

United States Patent i.

1 Claim ABSTRACT OF THE DISCLOSURE A container for shipping commodities having a bottom panel and side panels integrally connected to the bottom panel and extending at right angles. A double thickness end panel adhered to each end of the bottom and side panels. A cover construction having a top panel and end panels integrally connected to the top panel and extending at right angles. A double thickness side panel adhered to each end of the top and end panels.

Background of the invention This invention relates to a container having reinforced end and side panels that materially increase the stacking strength of the container. More specifically, this invention relates to a container having triple side and end walls in the assembled or closed position that provides for increased stacking strength in the container.

In the art of shipping fruit, produce and other agricultural commodities, it is the practice to pack them in containers and to ship them to the retailer for ultimate use and sale. It is essential that the containers that are used for shipment have high stacking strength so that the containers can be stacked one on top of the other. Also, the container should have strength enough to resist bulging so that regular stacks can be formed.

There have been many containers designed for use in shipping such commodities. One such design is illustarted in U.S. Patent No. 3,197,108, issued to 'Paul D. Northway. The design of this container is provided with a body portion having side walls and end walls. The end walls are reinforced with wood members laminated thereto to provide increased stacking strength in shipment. However, such a container is provided with several drawbacks. 'It requires a laminating operation to adhere the wood material to the end wall panel. In the event that the end wall panel is not exactly square, the container cannot be used to stack since it would throw the entire stack out of balance. The laminating of the wood members to the end wall panels requires additional machinery and capital expense which is undesirable.

Summary of the invention An object of this invention is to provide a container having reinforced side walls and end walls that materially increase the stacking strength of the container.

Another object of this invention is to provide a container having triple thickness end walls and triple thickness side walls when the container is in the assembled condition.

Another object of this invention is to provide a container having a body construction and a lid construction that together form a reinforced telescopic container that is less expensive to manufacture, yet is provided with sufficient stacking strength for ultimate use as a container for shipping commodities.

These and other objects and advantages will become manifestly clear to those skilled in the art when taken in conjunction with the detailed description and drawlngs.

3,428,234 Patented Feb. 18, 1969 Brief description of the drawings FIGURE 1 is a plan view of the main lid blank.

FIGURE 2 is a plan view the end wall blank.

FIGURE 3 is a plan view of the main body blank.

FIGURE 4 is a plan view of the side walls of the body blank.

FIGURE 5 is an isometric exploded view of the main body construction and lid construction in the assembled condition.

Description of the invention Referring to FIGURE 3 of the drawings, the main body blank is illustrated at 11 which includes a bottom panel 12, end walls 13 and 14. The bottom panel is separated from the end walls 13 and 14 by score lines 15 and 16. Glue flaps 17 are provided on the bottom panel 12 and are separated therefrom by a score line 19. The end walls 13 and 14 are provided with glue flaps 18 which are separated by score line 19.

In FIGURE 4, the side wall blank 20* is illustrated as being provided with a rectangular form. The width of the end wall blank 20 is the exact distance between the score lines 15 and 16 and the height of the blank is the exact height of the end walls 13 and 14. The side wall blank 20 is formed of double thickness corrugating medium to provide increased stacking strength.

In FIGURE 1, the main lid blank 1 is illustrated having a top panel 2 and side panels 3 and 4. The top panel is separated from the side panels by score lines 5 and 6. Glue flaps 7 are provided on the top panel 2 and are separated therefrom by a score line 9. The side panels 3 and 4 are provided with glue flaps 8 which are also separated by a score line 9.

In FIGURE 2, the end wall blank 10 is illustrated as being of a regular dimension. The width of the blank 10 is the exact distance between score lines 5 and 6 while the height thereof is the distance of the panels 3 and 4. The end wall 10 is formed of double thickness corrugating medium to provide reinforced stacking strength.

When it is desired to assemble the container of the present invention, the main body blank 12 is folded along score line 15 and 16 so that the end walls 13 and 14 are at right angles thereto. Next, the side wall panel 20 is placed adjacent to the score lines 19 in the bottom panel 12 and glue flaps 17 are bent along score line 19 and adhered to the outer surface of the side Wall blank 20. Also, the glue flaps 18 are bent at right angles and also adhered to the outer surface of the side wall blank 20. This construction is illustrated in FIGURE 5.

The lid construction can now be assembled by folding the lid blank 1 along score lines 5 and 6 so that the side walls 3 and 4 are at right angles to the top panel 2. The end wall blank 10 is now positioned adjacent the score lines 9 at each end thereof and the glue flaps 7 are bent at right angles with respect to the top panel 2 and adhered to the outer surface of the end wall panel 10. Also, the glue flaps 8 are bent at right angles and also adhered to the outer surface of the end wall blank 10.

The main body of the containers so assembled can now be filled with produce or other like material. Thereafter, the lid construction is telescoped over the bottom container assembly so as to provide the completely assembled container. As can be seen, the side wall panel 20 is of double thickness with the side panel 3 of a single thickness to provide a triple wall thickness of the side walls. Also, the end walls 13 and 14 are of a single thickness while the end panels 10 of the lid 1 are of a double thickness so as to provide a triple wall thickness at the ends of the container also. This construction provides a triple wall thickness around the entire periphery of the container which materially increases the strength of the container.

What is claimed is:

1. A container, comprising: a main body construction; said main body construction being provided with a bottom panel, and end wall panels integrally connected to said bottom panel and folded at right angles along score lines, a pair of side wall panels positioned at each side of said bottom panel, each of said side wall panels formed of double thickness corrugated containerboard and having a width the same as said bottom panel and the same height as said end wall panels, each of said side wall panels being adhered thereto by glue flaps integrally connected to said bottom and end wall panels, said construction providing triple thickness sections at said glue flaps; a main lid construction; said lid construction having a top panel and side wall panels integrally connected to said top panel and folded at right angles along score lines; a pair of end wall panels positioned at each end of said top panel; each of said end wall panels formed of double thickness corrugated containerboard and having a width the same as said top panel and the same height as said side wall panels; each of said end wall panels being adhered thereto by glue flaps integrally connected to said top and side wall panels, said construction providing triple thickness sections at said glue flaps, said lid adapted to telescope over said main body providing triple wall thickness for the container.

References Cited UNITED STATES PATENTS 696,936 4/ 1902 Burdick 22923 2,162,119 6/1939 Reaume 22923 X 2,713,961 7/ 1955 Mitchell et a1. 22923 FOREIGN PATENTS 102,289 8/ 1962 Netherlands.

DONALD F. NORTON, Primary Examiner. 

